ALSA: hda: intel-nhlt: Move structs out of #define block

As functions prototypes regerdless of CONFIG options as well as some
code depend on structures defined in sound/intel-nhlt.h header, move
them out of #define block. This allows to compile code depending on
mentioned header with "depends on ACPI || COMPILE_TEST" in Kconfig.

Fixes: 47a1886a61 ("ASoC: Intel: avs: Enable AVS driver only on x86 platforms")
Reported-by: kernel test robot <lkp@intel.com>
Suggested-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Link: https://lore.kernel.org/r/20220426200539.894010-1-amadeuszx.slawinski@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

include/sound/intel-nhlt.h

@@ -25,8 +25,6 @@ enum nhlt_device_type {
 	NHLT_DEVICE_INVALID
 };
 
-#if IS_ENABLED(CONFIG_ACPI) && IS_ENABLED(CONFIG_SND_INTEL_NHLT)
-
 struct wav_fmt {
 	u16 fmt_tag;
 	u16 channels;
@@ -126,6 +124,8 @@ enum {
 	NHLT_MIC_ARRAY_VENDOR_DEFINED = 0xf,
 };
 
+#if IS_ENABLED(CONFIG_ACPI) && IS_ENABLED(CONFIG_SND_INTEL_NHLT)
+
 struct nhlt_acpi_table *intel_nhlt_init(struct device *dev);
 
 void intel_nhlt_free(struct nhlt_acpi_table *addr);
@@ -143,8 +143,6 @@ intel_nhlt_get_endpoint_blob(struct device *dev, struct nhlt_acpi_table *nhlt,
 
 #else
 
-struct nhlt_acpi_table;
-
 static inline struct nhlt_acpi_table *intel_nhlt_init(struct device *dev)
 {
 	return NULL;